Titanic exhibits the most appalling acting and boring story line. At almost three and a half hours the film was enough to put anyone to sleep. While the film was over 3 hours long the portion of it that was the boat actually sinking was quite small and they spent too much time on the gushy love scenes. The film was also fairly historically inaccurate and contained many scenes where the crew was visible to the audience. Leonardo's performance was completely pitiful and anyone in their right mind spent the movie waiting for him to drown. The overwhelming cheeziness( aka. "Hold me Jack.") was enough to make the viewers wish they in-fact were the ones falling off the side off the boat.

My suggestions to Titanic

Hire an entirely new staff and create a new plot.
Do some fact research before filming.
And make it a smidge bit shorter at least.